A novel technology for investigating the dynamics of infant perseverative reaching

We designed and tested a novel technology that enables us to capture the entire stream of behavior in perseverative reaching tasks. Beyond fitting the criteria of the conventional A-not-B task, the novel technology gives us better access to the core features of perseverative reaching, such as timing, behavior history, and reinforcement. The technology allows us to quantitatively manipulate reinforcement characteristics, to accurately program onsets, delays, and stimulus durations as well as locations and salience of the targets, and to automatically record the number of reaches to each target and compute timing. We did a validation study on this new technology, investigating the influence of a number of novel factors on perseverative reaching. We replicated the A-not-B phenomenon and associated developmental changes. In addition, results demonstrated that the new technology offers insights into infants' behavior beyond the first reaching action. Moreover, data collection is fully automated, yielding precise, quantitative data. Future studies using this technology will capitalize on the salient advantages of this technology to more precisely measure goal-directed actions and understand the development of reaching skill.     

中世纪二元对立型社会治理模式与基督教信念伦理

本文深入分析了欧洲中世纪二元对立型社会治理模式与基督教信念伦理的深层成因、基本特征、主要内容及其二者的内在关联性,指出了它们被近现代民主法治型社会治理模式和规范伦理取代的历史必然性。     

"不可或缺性论证"与反实在论数学哲学

The indispensability argument for abstract mathematical entities has been an important issue in the philosophy of mathematics. The argument relies on several assumptions. Some objections have been made against these assumptions, but there are several serious defects in these objections. Ameliorating these defects leads to a new anti-realistic philosophy of mathematics, mainly: first, in mathematical applications, what really exist and can be used as tools are not abstract mathematical entities, but our inner representations that we create in imagining abstract mathematical entities; second, the thoughts that we create in imagining infinite mathematical entities are bounded by external conditions. __________ Translated from Zhexue Yanjiu 哲学研究 (Philosophical Researches), 2006, (8): 74–83     

基于P2P的混合过滤文章推荐系统

研究了在分布式的情况下的混合推荐机制,根据P2P环境下文档线性增长的特点,提出了用户兴趣模板的更新算法。实验表明,基于混合过滤的方法推荐效果要远远好于基于内容过滤或基于协作过滤的方法。     

The relationship of analogical distance to analogical function and preinventive structure: the case of engineering design

Analogy was studied in real-world engineering design, using the in vivo method. Analogizing was found to occur frequently, entailing a roughly equal amount of within- and between-domain analogies. In partial support for theories of unconscious plagiarism (Brown & Murphy, 1989; Marsh, Landau, & Hicks, 1996) and Ward's (1994) path-of-least-resistance model, it was found that the reference to exemplars (in the form of prototypes) significantly reduced the number of between-domain analogies between source and target, as compared with using sketches or no external representational systems. Analogy served three functions in relation to novel design concepts: identifying problems, solving problems, and explaining concepts. Problem identifying analogies were mainly within domain, explanatory analogies were mainly between domain, and problem-solving analogies were a mixture of within- and between-domain analogies.     

交感神经系统在应激免疫调节中的作用

目前,越来越多的研究资料表明交感神经系统(SNS)参与了应激的免疫调节作用。有关研究主要集中在SNS与免疫系统间的解剖基础及相互作用、SNS参与应激的免疫调节作用的实验研究以及SNS与下丘脑-垂体-肾上腺轴（HPA）间的相互作用等几个方面。综合阐述这些研究结果,并着重分析SNS、应激与免疫系统间的相互作用及其机制     

成人期人际性问题解决的策略取向研究

采用开放式问卷,考察252名25至75岁的成人解决人际性问题的策略取向。结果表明：总体上中国成人偏重于二级控制取向;成人前期个体较其他年龄段成人表现出更多的一级控制取向;情境因素对成人的策略取向有较大影响,并且这种影响对不同年龄段成人所产生的效应存在明显差异。     

青少年时间管理倾向相关因素的研究

本研究探讨时间管理倾向与学生学业成绩、自我价值感和主观幸福感三者的关系,进一步验证个人的时间管理倾向与生活质量的关系。对重庆和成都两地三组1387名大、中学生(重庆312名中学生、339名大学生,成都736名中学生)的问卷调查研究发现：(1)时间监控观对学业成绩具有一定的预测作用,时问价值感和时间效能感是通过时间监控观来影响学业成绩。(2)时间管理倾向各维度与总体、一般和特殊自我价值感之间存在显著的正相关。随着自我价值感抽象程度的降低,时间管理倾向对自我价值感的影响程度也就越大。(3)时间管理倾向各维度与积极情绪之间存在显著正相关,与消极情绪之间存在显著负相关。时间管理的好坏可能是影响主观幸福感的一个重要因素。     

“非典”流行期大学生面对非典的压力源和压力研究

该研究旨在探索非典流行期大学生面对非典的压力源和压力状况,用“大学生非典压力状况调查表”和“大学生非典压力源调查表”测查了723名大学生。结果表明：（1）大学生的非典压力源来自3个方面,它们是非典疾病压力源、非典信息压力源和应对非典措施压力源。（2）非典流行期大学生对非典的恐慌程度、所感受到的非典压力强度以及非典压力对其造成的影响程度均处于中等水平。     

n-back任务下视觉工作记忆负荷研究

实验采用n-back范式,考察了视觉工作记忆负荷与反应时、辨别力和主观评价的关系,以及空间位置记忆负荷与图形记忆负荷的差异。结果发现,随着记忆负荷的增大,反应时延长,辨别力降低,主观负荷提高。视觉图形记忆任务的负荷水平高于视觉空间位置记忆任务的负荷水平;同时也为视觉图形记忆和视觉空间记忆具有不同的加工过程提供了证据。